Features

Broad wavelength range

Control over β2, β3, β4...

Customizable parameters

Low loss

Up to 10 nanoseconds stretching

Different packaging options (recoated, loose tube, athermal)

Module configuration includes circulator

Benefits

Compact and easy to use

Alignment free

Cost effective

Volume fabrication

Robust

The PowerSpectrumTM-PSR allows for precise control of pulse

duration for chirped pulse amplification (CPA).

TeraXion’s PSRs are low loss, all-fiber, FBG based chromatic dispersion

management devices.

Used for chirped pulsed amplification in high power ultrafast lasers, it

stretches the pulse in the time domain to reduce the peak power and avoid

non-linear effects in the amplification stage. It also helps to pre-compensate

for higher orders of dispersion (β3, β4…), introduced by the grating compressor.

PWS-PSR Standard Configuration Specifications

Stock Items

TEC TEC TEC

Parameters Specifications Units

Center Wavelength (λ0) @ Room T° (1) (Slow Axis) 1030 ± 0.5 nm

Min. Reflectivity Over 80% of FWHM (2) > 35 %

Reflection Bandwidth @ -3 dB FWHM 20 ± 1 nm

D2 (3) -55.72 ps/nm

D3 (3) -0.967 ps/nm2

Spectral Shape Flat top

Wavelength Referenced to Air

Connectors Type None

Fiber Type PM980

Package Type UV Cured Acrylate + Rigid Loose Tube

Pigtails Length (On Each Side) ≥ 1 m

Parameters Specifications Units

Wavelength Range (Complete coverage) 750-2400 nm

Bandwidth 0.015 to 100 nm

Total Stretching Up to 10 ns

Dispersion Rate 0.01 to 2000 ps2

High Order Dispersion Compensation β2, β3, β4, β5 and β6

Reflectivity Up to 99.0 %

Fiber Type SM(1), PM(2) and LMA(3)

Package Recoated, Loose Tube, Athermal, Module with Circulator

(1): Room temperature (20-23°C)

(2): Long wavelengths reflected first

(3): The group delay function is: GD = D2(λ-λ0) + D3(λ-λ0)2 + D4(λ-λ0)3

Parameters Units Matched Treacy Compressor Specifications

Grooves Density

1740 g/mm

Perpendicular Distance Lo Between Diffraction Gratings 14.5 cm

Gratings Angle of Incidence α 60.0 degree

Medium Standing Between the Gratings Air

PWS-PSR Customizable Specifications

(1): Single Mode fiber

(2): Polarisation Maintaining fiber

(3): Large Mode Area fiber

PWR-PSR Parameters to Provide when Ordering Customized Items

TEC TEC TEC

1 = Wavelength

xxxx.x (nm)

2 = Bandwidth @ -3 dB

xxx.x (nm)

3 = ±D2, ±β2

±D2 = Dxxxx (ps/nm)

±β2 = βxxxx (ps²)

4 = ±D3, ±β3

±D3 = xxxx (ps/nm²)

±β3 = xxxx (ps³)

5 = Connectors Type

0 = None

1 = FC/APC

2 = FC/UPC

3 = SC/APC

4 = SC/UPC

5 = LC/APC

6 = LC/UPC

7 = MU/UPC

6 = FBG Fiber Type

P1 = Polarization Maintaining (PM)

P2 = PM with Cladding Mode Suppression

S1 = Single Mode Non-PM (SM)

S2 = CMS Non-PM (SM)

7 = Circulator

0 = Without Circulator

C = With Circulator

8 = Package Type

R = Acrylate Recoat

L = 900 μm Loosetube

P = Rigid Loosetube (ø2.00 mm)

A = Athermal Packaging

G = Module Half Rackmount X1U (Fixed)

D = Compact Module 9 x 65 x 242 mm (Fixed)

C = Custom

Ordering information

Typical CPA (Chirped-Pulse Amplifier) fiber laser block diagram

MK

T-FT

ECH

-PW

S-P

SR 2

01

41

2-4

.1

The PWS-PSR can be ordered according to customer requirements or to specific standard configurations as featured in this

document. For orders, questions, specific requirements or to learn more about TeraXion’s products, contact us at

info@teraxion.com

Ultrafast

Oscillator Amplifier

PWS-PSR

Pulse Stretcher

Grating compressor